DYWIDAG Strand Anchor Systems

Anchor Installation, Stressing and Monitoring Equipment


Horizontal Uncoiler ”LAZY SUSAN”
Horizontal Uncoiler ”LAZY SUSAN”
Vertical Uncoiler
Vertical Uncoiler

Installation Equipment

Uncoiling equipment is utilized to ensure efficient and safe installation of anchors while minimizing the risk of damage to the corrosion protection system. Various manual and motorized styles of uncoilers are available for rent to meet your project specific needs.


1500 KN JACK (2-7 Strands) equipped with EZ ChairTensa 2600 JACK (8-12 Strands) equipped with Power Seating
1500 KN JACK (2-7 Strands) equipped with EZ Chair
Tensa 2600 JACK (8-12 Strands) equipped with Power Seating
2000 TON JACK (91 Strands)
2000 TON JACK (91 Strands)

Stressing Equipment

DSI has a large fleet of stressing equipment that enables our customers to test and lock off anchors of any size. The stressing jacks are complemented by stressing chairs, pulling heads and hydraulic pumps for safe and efficient stressing operations.

Customized equipment has been provided for many jobs with difficult access or for high capacity anchors. Our in house engineering staff is well equipped to work with you on your job specific details and requirements.


Load Monitoring Equipment

Strand Sensor Power Stress Unit
Strand Sensor
Power Stress Unit

Load Monitoring Equipment

Our new DYNA ® Force Elasto-Magnetic Sensor allows for short and long term monitoring of anchor loads through calibrated sensors and a Power Stress Unit (read out box) that displays loads in kips with an accuracy of +/- 1 %.

Sensors can also be utilized in the bond length of the anchor to verify its performance. Please refer to our DYNA ® Force Elasto- Magnetic Sensor brochure for further technical information.